<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>Document</title>
</head>
<body>
    <p>欢迎您：<%=username%>浏览我的页面。<a href="/out">退出登录</a></p>
    <p>这是商品展示界面</p>
</body>
</html>